/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.apache.kafka.storage.internals.log;

import org.apache.kafka.common.record.DefaultRecordBatch;

public record BatchMetadata(int lastSeq, long lastOffset, int offsetDelta, long timestamp) {

    public int firstSeq() {
        return DefaultRecordBatch.decrementSequence(lastSeq, offsetDelta);
    }

    public long firstOffset() {
        return lastOffset - offsetDelta;
    }

    @Override
    public String toString() {
        return "BatchMetadata(" +
                "firstSeq=" + firstSeq() +
                ", lastSeq=" + lastSeq +
                ", firstOffset=" + firstOffset() +
                ", lastOffset=" + lastOffset +
                ", timestamp=" + timestamp +
                ')';
    }
}
